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Vuforia camera battery drain?

July 22, 2016 - 3:38am #5

Hello

I was not sure, exactly were to ask this, and I have not been able to find any replies specifically concerning my question, so here I go:

I am developing an app, in which the user will walk around for quite some time with the app open. In order to limit the battery consumption, I implemented a script, which will turn off the camera and tracking, whenever the phone is in a resting position (based on accelerometer readings). The algorithm works just fine in the intended context, however, it gets a bit jarring, and possibly confusing for the user if the camera turns off and on all the time.

So what I was thinking was, if it is possible to disable the tracking only, without disabling the camera, and if so, if there are ANY battery-advantages at all connected to this? CPU-wise the extra work does not really matter in the context of the app (although I am sure, some of you will disagree :P )

Hope someone can help me here. I don't want to put in a lot of unnecessary effort into something, which might not even benefit me much :)

Thanks

Vuforia camera battery drain?

July 22, 2016 - 10:47am #4

Hello,

Per the Vuforia SDK API spec, it is possible to deinit the tracker while the camera is running:

https://developer.vuforia.com/library/sites/default/api/cpp/classVuforia_1_1TrackerManager.html#a6716e36c6659b2ba0cbb7f42079e653b

Thanks

Vuforia camera battery drain?

July 25, 2016 - 3:06am #3

Ok. Thanks :)

However, I'm still unsure of whether or not there is any actual advantage for me battery-wise to do this?

Vuforia camera battery drain?

July 25, 2016 - 7:34am #2

Hello,

In our experience benchmarking device performance while running Vuforia, the amount of power our SDK algorithms use is an insignificant percentage of the drain on the battery compared to running the display (~80% of battery drain) and/or the camera.

Thanks

Vuforia camera battery drain?

July 29, 2016 - 2:17am #1

Ok. Thank you. That will save me some time and some code :)

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